E370 (1-3) QUESTIONS WITH
CORRECTLY ANSWERED SOLUTIONS!!
1 of 67
Term
Refer to Exhibit : Bloomingfoods. Using α=0.1, compute the
critical
value using Excel. Round off your solutions to four decimal
digits.
Give this one a try later!
1.2820 1.3062
1.9600 1.6450
, Don't know?
2 of 67
Term
Accroding to the Federal Reserve Bank of Chicago, 70% of American
had a credit score above 600 in 2020. To test whether this
proportion has decreased, the Federal Reserve collects data from
a random sample of 200 Amercians this year. From this sample, 100
people has credit scores above 600.
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Exhibit : Snapchat Exhibit : Credit Score
Exhibit : Bloomingfoods Exhibit : Blood Test
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3 of 67
Term
Find the P(X¯1=X¯2)
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, 0 0.7
0.0077 4
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4 of 67
Term
The sum of squared deviation of a sample of 5 elements is
determined to be 400. The variance of the population
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can be any value greater
is equal to the sum of deviations than
zero
must be exactly 400 is always less than 100
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, 5 of 67
Term
According to the Snap Inc., the average daily user of Snapchats
created 20 snaps per day in 2020. Suppose you want to test the
hypothesis that the average of snaps has been changed. A random
sample of 100 users of Snapchats was selected and the average of
snaps was found 24. Assume the population standard deviation is 15.
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the p-value Exhibit : Blood Test
Exhibit 4 Exhibit : Snapchat
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6 of 67
Term
Refer to Exhibit : Snapchat. Compute the test statistic using Excel.
Round off your solutions to four decimal digits.
Give this one a try later!
2.6667 0.9876
CORRECTLY ANSWERED SOLUTIONS!!
1 of 67
Term
Refer to Exhibit : Bloomingfoods. Using α=0.1, compute the
critical
value using Excel. Round off your solutions to four decimal
digits.
Give this one a try later!
1.2820 1.3062
1.9600 1.6450
, Don't know?
2 of 67
Term
Accroding to the Federal Reserve Bank of Chicago, 70% of American
had a credit score above 600 in 2020. To test whether this
proportion has decreased, the Federal Reserve collects data from
a random sample of 200 Amercians this year. From this sample, 100
people has credit scores above 600.
Give this one a try later!
Exhibit : Snapchat Exhibit : Credit Score
Exhibit : Bloomingfoods Exhibit : Blood Test
Don't know?
3 of 67
Term
Find the P(X¯1=X¯2)
Give this one a try later!
, 0 0.7
0.0077 4
Don't know?
4 of 67
Term
The sum of squared deviation of a sample of 5 elements is
determined to be 400. The variance of the population
Give this one a try later!
can be any value greater
is equal to the sum of deviations than
zero
must be exactly 400 is always less than 100
Don't know?
, 5 of 67
Term
According to the Snap Inc., the average daily user of Snapchats
created 20 snaps per day in 2020. Suppose you want to test the
hypothesis that the average of snaps has been changed. A random
sample of 100 users of Snapchats was selected and the average of
snaps was found 24. Assume the population standard deviation is 15.
Give this one a try later!
the p-value Exhibit : Blood Test
Exhibit 4 Exhibit : Snapchat
Don't know?
6 of 67
Term
Refer to Exhibit : Snapchat. Compute the test statistic using Excel.
Round off your solutions to four decimal digits.
Give this one a try later!
2.6667 0.9876
